| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 70/70] um: Add missing apply_returns() | Date | Fri, 22 Jul 2022 11:08:05 +0200 |
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From: Peter Zijlstra <peterz@infradead.org>
commit 564d998106397394b6aad260f219b882b3347e62 upstream.
Implement apply_returns() stub for UM, just like all the other patching routines.
Fixes: 15e67227c49a ("x86: Undo return-thunk damage") Reported-by: Randy Dunlap <rdunlap@infradead.org) Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/Ys%2Ft45l%2FgarIrD0u@worktop.programming.kicks-ass.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/um/kernel/um_arch.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -432,6 +432,10 @@ void apply_retpolines(s32 *start, s32 *e { } +void apply_returns(s32 *start, s32 *end) +{ +} + void apply_alternatives(struct alt_instr *start, struct alt_instr *end) { }
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